Community structure of benthic amphipods in four estuaries of northwest India

Srinivas, T. N. R.; Sukumaran, Soniya; Mulik, Jyoti; Dias, Heidy Q.

doi:10.1016/j.rsma.2019.100532

Cited by 8 publications

(6 citation statements)

References 35 publications

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“…A comprehensive account on the polychaete diversity of Indian estuaries was provided by Khan and Murugesan (2005). The first comprehensive seasonal study of the amphipod community structure and their spatio-temporal distribution in four estuarine (Ulhas, Amba, Savitri, and Kundalika) sediments of Maharashtra was provided by Srinivas et al (2019b). The study investigated the species composition, diversity and distribution, functional traits of amphipods, and the influence of hydrosedimentological variables on community structure.…”

Section: The Estuaries and Creeksmentioning

confidence: 99%

Marine Macrobenthos of NorthWest India-Reviewing the Known and Unknown

et al. 2021

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Tropical ecosystems sustain higher biodiversity and face faster species extinction. However, baseline information of these areas is either inadequate or scattered due to various reasons. The 2,360 km long coast of North West India (NWI), is a heavily industrialized and urbanized zone. This coast with unique biogeographical and climatic features with two notified marine protected areas also supports rich biodiversity. This review was motivated by a need to construct a synoptic view on marine benthic ecology and functioning by consolidating available information of macrobenthos. Two thousand seventy-eight macrobenthic taxa belonging to 14 phyla were compiled from 147 references and were composed mostly by Polychaeta (n = 617), Gastropoda (n = 602), and Bivalvia (n = 216). Habitat wise, intertidal and subtidal zones were more intensely studied and contributed most to the diversity records. Sediment texture and salinity were the major drivers of macrobenthic community structure in the subtidal areas and estuaries, respectively. In the intertidal zones, zonation patterns related to the tidal levels and time of exposure were distinct with the high water zones being sparsely populated and lower intertidal zones sustaining higher species and functional diversities. All zones of NWI coast were distinctly impacted to various extent by anthropogenic activities affecting the resident macrobenthos. Decline in species richness and species substitution due to pollution were reported in urbanized zones. Non-monsoonal months favored a more conducive environment for the macrobenthic diversity and functionality. Hypoxia tolerant polychaete species mainly belonging to Spionidae and Cossuridae dominated during the low oxygen conditions of upwelling and OMZ zones of NWI. Inadequate identification and inconsistency of sampling methods were major deterrents for concluding trends of distributions. Suggestions for future macrobenthic research include focusing on lesser studied groups and areas, seasonal as well anthropogenic hypoxic zones and well planned long-term monitoring studies. Major data lacunae were identified in the taxonomy, molecular, functional aspects, and bioinvasive studies of macrobenthos in this geographical zone despite clear evidence of high diversity of extant macrofauna. This compendium should help prioritize research areas and objectives aimed at enhancing our understanding of macrobenthos and improve predictive capabilities of community shifts that may occur due to global climate change scenarios.

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Section: The Estuaries and Creeksmentioning

confidence: 99%

Marine Macrobenthos of NorthWest India-Reviewing the Known and Unknown

et al. 2021

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“…Since 1975 (Rabindranath, 1975) till the date (Srinivas, 2019), Ampelisca scabripes (Walker, 1904) has been known to occur in Indian estuarine environment. While Ampithoe ramondi (Audouin, 1826) occurrences in South Pacific islands were recorded as early as 1986 (Myers, 1986) and their active feeding on leaves and seeds of seagrasses were well known (Castejón-Silvo et al, 2019), their occurrences in the present study are not surprising, given the presence of seagrass patches in Vellar estuary (Ranjitham et al, 2008).…”

Section: Species Composition and History Of Its Occurrencesmentioning

confidence: 99%

Strengthening marine amphipod DNA barcode libraries for environmental monitoring

PrasannaKumar

Manikantan

Vijaylaxmi

et al. 2020

Preprint

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Environmental DNA (eDNA) barcoding technology is finding innovative applications in monitoring terrestrial and marine biodiversity. DNA barcode reference libraries containing barcodes for wide range of species is vital for the success of monitoring any environments using eDNA barcodes. Since amphipods are used as bio-indicators for monitoring environmental quality and its health, we used DNA barcodes of amphipods to test the efficacy of present DNA libraries for species identification. We barcoded 22 amphipod species belonging to 17 genera of 13 families. 50% of barcodes produced in the present study was generated for the first time, as the sequences were absent in GenBank and Barcode of Life Databases (BOLD). Tree based identification method used in the present study precisely clustered the generated sequences with reference sequences. Besides exploring the distribution of recorded amphipod species, we show that with advent of next generation sequencing technologies, reference datasets such as ours will become essential for assessing health and monitoring various environments using amphipod barcodes.

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“…Unlike the Polychaeta, the Amphipoda has received scant attention and very little is known on their distribution, ecology, and functioning from the Indian subcontinent (Srinivas et al, 2019). The biodiversity of amphipods in estuaries, intertidal, and shallow coastal areas from east and west coasts of India has been increasingly investigated during the last decade (Guerra-García et al, 2010;Mondal et al, 2010;Rehitha et al, 2019).…”

Section: Introductionmentioning

confidence: 99%